Machine for setting crystals in bezels



July 20 {1926. 1,593,013

' R. F. BURWELL NACHINE POR SETTING CRYSTALS IN BEZELS Filed March 57 1925 2 Sheets-Sheet 1 Q r. 17' a zz 2?. BURL/ELL,

July 20 1926. 1,593,013

' R. F. BURWELEL ncnnm FOR sar'rmc CRYSTALS IN BEzzLs Filed March 5. 1925 2 Sheets-Sheet 2 27 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII (I YIIII/q f WW R. F. BURNELL.

album Patented July 20, 1926.

UNITED STATES PATENT OFFICE.

RAY I. BURVTELL, F MARION, INDIANA, ASSIGNOR OF ONE-HALF TO FINGO THEANDEBS, OF MARION, INDIANA. i

MACHINE FOR S-E'ITXNG CRYSTALS IN BEZELS.

Application filed March 5, 1925. ,Serial No. 13,258.

l This invention relates to machinestor setting crystals in bezels of watches and clocks, the machineincluding convenient means for storing a supply of crystals for use on occaslon.

When crystals are placed in bezels by hand, as usual, considerabletime and atten tion are required, and with glass crystals considerable breakage results, and the principal object of the present invention is to provide improved means for setting the crystals in the bezels mechanically, by means of a foot operated plunger, as will be hereinafter explained. I V V The invention is illustrated in the accompanying drawings in which Fig. 1 is a perspective view of the machine. Figs. 2 and 3 are details of various parts of the apparatus.

Referring specifically to the drawings, 6 indicates a base on which is mounted a hol low standard 7 which carries at its upper end a revolving drum 8 whichis journalled on a tube 9 set in the top of the standard, whereby the drum can be turned to any position desired. The drum is divided by partitions between its top and bottom plate into a. plurality of compartments 10 in which crystals may be stored, and each compartment has a door 11 which can be opened to give access to the crystals. The compartments conveniently correspond in number and position to a series of holes 12 in the top of the drum, and these holes correspond in size to the diameters of stock sizes of crystals for different kinds of watches, the crystals of corresponding sizes being conveniently kept in the respective compartments.

A treadle 13 is connected by a rod 14 to a lever 15, this lever being pivoted at 16 to a bracket 17 which may be screwed onto the upper end of tube 9, above the top of the drum, and so held in position. The treadle 13 is pivotedat 18 to a bracket 19 fixed on the base 6, within the bottom of the standard, and the lever'is connected to a coiled spring 20 which tends to lift the treadle and the lever 15 connected thereto.

At its outer or free end the lever has mounted'thereon a three armed body 21, the mounting being eflfected by a screw pin 22 extending thru a hole in the body 21 and tapped into the end of arm 15. The number of arms on the body 21 may be varied as desired. Ordinarily, three -would be enough, and the length of the lever is such that the body will be in a position directly over the ring of holes 12. The body 21 may be turned to present any one of the arms in alinement with one of the holes, and is held in such position by a spring catch 23 fixed to the under side of lever 15 and engaging in a notch 24 in the selected arm of the body 21.

Each of said arms is bored to receive the shank 25 of a plunger head 26 whiclrhas a pad 27 by which the pressure is applied. Plungers or": different sizes may be used according to the size of the crystal tobe set.

For holding the drum in position to which it is turned, I provide a catch consisting of a pair of parallel motion rods 30 which are pivoted to the standard 7 and carry at their ends a finger piece 31 which has a pin 32 projecting in position to engage in and project thru a hole 33 in the under side of the drum, said latch being normally raised by a spring 34 acting on a rod 35 connected to the finger piece. This pin 32 projects up thru the hole in the bottom of the drum in such a way that when the drum is turned the pin snaps in the hole desired, and protrudes up thru the bottom of the drum, hitting the case door, and opens same. This door case' opens as a whole, being hinged at the bottom, which allows the same to open out and downward. \Vhen the finger piece is pushed down the latch is released and the drum may be turned, and when the finger piece is released the spring 34 will lift it and engage the pin 32 in the hole 33, thereby holding the drum with the selected hole 12 centered under the plunger. The finger piece 31 is bent up to such position that it forms a support for the door 11 when it is open, thereby preventingthe crystals from falling out of the compartment.

In the use of the machine, the drum is turned until the desired size of crystal is in line with the plunger. Then the crystal is taken from the compartment and placed over the corresponding hole 12, being then in line with the plunger. The bezel in which the crystal is to be inserted is then placed upon the crystal with its edges matched. Then the treadle is depressed. This causes the plunger to enter downwardly thru the bezel and press upon the crystal, and the pressure depresses the crystal into the hole to the extent permitted by the elasticity of the crystal, and this action decreases the diameter of the crystal to such an extent that the bezel slips downand the edge of the crystal will enter its seat in the bezel, or snap into place, and the pressure then being released the crystal will expand to tight position in the bezel.

By the means described, crystals may be quickly and easily inserted, and since the pressure. is quite even and well-distributed there is little or no danger breaking the same. It w ll be understood that the crystals o1 respective sizes are somewhat larger than the corresponding holes 12, so that they will rest at their edges upon the rim of the hole with the central part over the hole in position to be. sprung down by the pressure of the plunger.

The ii vention not limited to the particular toriu shown. but various modifications are possible within the scope of the following claims.

I claim:

1. In a machine for setting crystals, the combination of a base, a hollow standard thereon, a plate rotatably mounted on top of the standard and having a series of holes therein, a lever pivotally supported above the plate and havin;- a plunger adapted to act on a crystal placed over one of said holes, a rod connected to the lever and e2-1- tending thru said standard and plate, and a treadle pivoted on the base and connected to said rod.

In a machine. "for setting crystals, the combination of a hollow supporting" standard, a tube fixed to the top of said standard, a plate rotatable on top of the standard and around said tube, said plate having a series of holes therein, a bracket fixed to the upper end of the tube, above said plate, a lever pivoted on said bracket and having a plunger adapted to act on a crystal placed over one of said holes. a rod connected to said lever and extending thru said tube and standard, and a treadle connected to said RAY F. BURYYELL 

